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#420
by
eeergo
on 13 May, 2009 21:24
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All TPS cleared for tiles and blankets (that leaves the RCC) No FI needed for TPS. RCC was more than 90% complete when MMT finished, so probably won't need any further inspection there either. Decision in 2 hours. Tomorrow, DAT will formally clear RCC in the MMT.
Vehicle very clean, pleased with performance.
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#421
by
Ronsmytheiii
on 13 May, 2009 21:25
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#422
by
eeergo
on 13 May, 2009 21:27
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Ascent performance really good. More info on that when the post-flight assessments are out.
Hubble team looking at the debris particles/contamination in the payload bay. They have plans to deal with those. Advising the crew to keep out of their way, and avoid them getting close to instruments. Just a slight nuisance.
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#423
by
Chris Bergin
on 13 May, 2009 21:28
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The WLE IDS is 0.47, not 4.7.
They don't usually even look at anything less than 1.0 Grms, so surprising they would mention it. Over 10.0 Grms is where it becomes a worry, depending on mass, size, which panel etc.
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#424
by
eeergo
on 13 May, 2009 21:29
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Impact load to cause damage to RCC: function of panel, and location within the panel, as well as size, angle... many variables. But a handful of Gs, so nothing like the .5 Gs recorded (thanks for the correction Phillip... do they measure in grams or in Gs?)
Contamination, they think, is something getting from underneath the blankets. Definitely, absolutely, undeniably weren't there before launch.
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#425
by
Chris Bergin
on 13 May, 2009 21:31
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A picture of the location.
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#426
by
eeergo
on 13 May, 2009 21:32
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Contaminants are aft of the airlock, on the first truss with Hubble hardware (on the SLIC, therefore - nice picture by Chris just above
)
Impact on leading edge was detected within the last 24 hours. Not surprising.
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#427
by
eeergo
on 13 May, 2009 21:33
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Possible debris conjunction: yellow category. Probably nothing to worry about, but still tracking the item.
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#428
by
eeergo
on 13 May, 2009 21:34
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RCC assessment expected to be completed today (only 10% left) Tomorrow at MMT will be officially clear.
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#429
by
eeergo
on 13 May, 2009 21:37
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Chine damage: it went through normal assessment by DAT. Relatively small dings and scratches, superficial. Inner area of the tile is pretty thick, so no worries there. Not really even close to being critical.
Looked at how the increased heating in one would affect the increased heating in the one behind it, but fundamentally, it was relatively small damage, no action required.
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#430
by
eeergo
on 13 May, 2009 21:39
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Contamination looks like coarse-grain salt sprinkled over the handrail, without high density areas. On MLI, about a dozen particles, smaller than the tip of the small finger.
White in color. Will release the pictures. No particles on the thermal cover (on the airlock, right?) Just telling the crew to be careful with how they grab the handrail, because they can avoid it, as well as when opening the latches on the SLIC without disturbing the contaminated MLI.
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#431
by
AnalogMan
on 13 May, 2009 21:42
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Impact load to cause damage to RCC: function of panel, and location within the panel, as well as size, angle... many variables. But a handful of Gs, so nothing like the .5 Gs recorded (thanks for the correction Phillip... do they measure in grams or in Gs?)
The unit used is usually Grms - that is G root-mean-square (not grams).
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#432
by
eeergo
on 13 May, 2009 21:43
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Still no info on when the yellow-classed conjunction with the debris will take place.
Impacts of the pad debris/lightning strikes. 39B and Endeavour are ok, lightning didn't cause damage (as far as they have checked) 39A can be repaired within the last week or so.
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#433
by
eeergo
on 13 May, 2009 21:45
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The unit used is usually Grms - that is G root-mean-square (not grams).
Effective Gs, understood. Thanks!
For possible debris avoidance maneuver, nothing agressive like OMS assists can be done, less so when Hubble is docked. Only slight RCS corrections.
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#434
by
psloss
on 13 May, 2009 21:46
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Still no info on when the yellow-classed conjunction with the debris will take place.
This was called up to the crew just before the briefing began, so Mr. Cain probably didn't get much info...CapCom said it was around the time of the beginning of crew sleep...
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#435
by
eeergo
on 13 May, 2009 21:52
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You can really see cosmic rays hitting the cameras, as very fast and bright streaks and dots, now everything's dark!
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#436
by
eeergo
on 13 May, 2009 21:54
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#437
by
Hungry4info3
on 13 May, 2009 21:58
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You can really see cosmic rays hitting the cameras, as very fast and bright streaks and dots...
Is it normal to see that?
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#438
by
charlieb
on 13 May, 2009 22:00
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You can really see cosmic rays hitting the cameras, as very fast and bright streaks and dots, now everything's dark!
You will see this sort of thing really well as Atlantis sails through the South Atlantic Anomaly.... First time we saw this on SM-1 it was caled Charlies Sparklies
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#439
by
robertross
on 13 May, 2009 22:07
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You can really see cosmic rays hitting the cameras, as very fast and bright streaks and dots, now everything's dark!
Yeah, and going through most everything else, including crew, hence the rad exposure worry for the EVA timelines.
)